Stephadilat-S

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Stephadilat-S

Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Stephadilat-S

Quick Facts

Property Description
Active Ingredient Fluoxetine (hydrochloride salt)
Form Capsules, film-coated tablets, and oral solution
Pharmacological Class Selective Serotonin Reuptake Inhibitor (SSRI)
General Purpose Support for mood stabilization and emotional well-being
Origin Synthetic compound

1. Identity: What Type of Medicine is Stephadilat-S?

Stephadilat-S is a prescription psychotropic agent officially categorized as an antidepressant. The drug belongs to the specific pharmacological class known as a Selective Serotonin Reuptake Inhibitor (SSRI), identifying it as a highly recognized second-generation medication. This SSRI designation indicates a primary mechanism confined to the serotonin transport system, offering a more targeted influence on brain chemistry compared to older agents. The SSRI class is clinically recognized for providing pharmaceutical support in scenarios related to mood and mental health, often prescribed by physicians to adults and sometimes to pediatric populations.

2. Composition and Form: The Active Ingredient (Fluoxetine) and Presentation

The clinical efficacy of Stephadilat-S is attributed to its single active ingredient, Fluoxetine, which is a synthetic compound typically incorporated as the hydrochloride salt. This single-agent product is designed for oral administration and is supplied in multiple forms, including hard gelatin capsules, film-coated tablets, and an oral solution. The active ingredient maintains a consistent chemical structure and purity, which allows for the delivery of the substance to the gastrointestinal tract.

3. General Purpose: Why Use an SSRI?

The general purpose of Stephadilat-S is to support the balance of brain chemistry by acting on the neurotransmitter serotonin. It functions by temporarily blocking the reabsorption, or "reuptake," of serotonin into nerve cells. By sustaining higher levels of functional serotonin, the medicine helps to improve communication along pathways critical for regulating mood and emotional response. For instance, a typical neutral use involves providing pharmacological support to individuals experiencing states of persistent low mood or excessive worry. This action is intended to help stabilize a patient's emotional state and promote overall emotional well-being.

What side effects are possible with Stephadilat-S?

Possible side effects and safety information

The safety profile of Stephadilat-S, whose active ingredient is fluoxetine, is documented according to the official classification standards used by global regulatory authorities. The adverse reactions are categorized by frequency and the body system affected, strictly based on government-approved prescribing information.


Frequency and System-Organ Classifications

Adverse reactions are organized into specific System-Organ Classes (SOCs). Reactions are officially classified by incidence rates:

Classification Examples of Reactions (Official Terminology)
Very Common (geq 1/10) Headache, Nausea, Diarrhea, Insomnia, Fatigue.
Common (geq 1/100 to < 1/10) Anxiety, Dizziness, Tremor, Somnolence, Dry mouth, Constipation.

Major systems affected include the Nervous System (e.g., tremor, dizziness), Gastrointestinal Disorders (e.g., nausea, diarrhea), and Psychiatric Disorders (e.g., insomnia, anxiety).


Documented Serious Adverse Reactions and Constraints

Official labeling highlights several clinically significant, though less frequent, events. A potentially serious, documented reaction is Serotonin Syndrome, or events resembling Neuroleptic Malignant Syndrome, particularly when used alongside other serotonergic agents. The risk of abnormal bleeding events, such as gastrointestinal haemorrhage, is also noted in regulatory documents.

Safety notes for specific groups are documented: there is an official warning concerning the increased risk of suicidal ideation and behavior in children and adolescents. Additionally, caution is advised for patients with severe hepatic impairment due to the drug's extensive metabolism. Certain effects, such as anxiety and insomnia, are often observed more frequently at the beginning of treatment.

Overdose and Emergency Response

Overdose and When to Seek Help — Official Regulatory Information

The regulatory profile for Stephadilat-S (Fluoxetine) documents specific clinical manifestations and severe outcomes that may follow an overdose, mandating immediate medical attention.

Domain Official Regulatory Statements
Documented Overdose Presentations Seizures, Somnolence (drowsiness), Tachycardia (rapid heart rate), Nausea, Vomiting, Agitation, and Tremor.
Physiological Systems Affected Central Nervous System, Cardiovascular, and Gastrointestinal systems.
Severity Classification Critical outcomes include Serotonin Syndrome, QTC Prolongation, ventricular arrhythmia, Coma, and Death, particularly in high-exposure cases.
Exposure-related Factors The risk and severity of critical events are heightened in the event of polydrug ingestions (co-ingestion of other substances).
Emergency Medical Action Required Individuals must seek immediate medical attention for any suspected overdose. Emergency services should be contacted if signs such as seizures, difficulty breathing, or loss of consciousness occur.
Supportive Management Treatment is symptomatic and supportive, including cardiac monitoring via ECG monitoring. Officially, no specific antidote is known. Procedures such as activated charcoal may be considered.

This regulatory structure identifies critical risks such as Serotonin Syndrome and cardiovascular instability, which mandate prompt hospitalization and continuous observation. The focus remains on supportive measures, as the official label confirms the absence of a known specific antidote.

Therapeutic Uses of Stephadilat-S

What Stephadilat-S Treats: Main Uses and Benefits

Stephadilat-S is used in situations involving certain distressing symptoms across multiple therapeutic domains. The medication is commonly applied in clinical settings that involve acute or unstable symptom patterns, addressing conditions such as Major Depressive Disorder, Obsessive Compulsive Disorder, and Panic Disorder. It is also used for specific clinical presentations, including Bulimia Nervosa and Premenstrual Dysphoric Disorder (PMDD).

The medication is considered relevant for managing symptom clusters that create noticeable functional strain. It supports the goal of stabilizing the patient's emotional state, which contributes to easing the overall symptom load, particularly related to persistent low mood, excessive worry, and compulsive behaviors. It may be part of symptomatic management in situations where previous treatment response was inadequate.

Quick Fact: Relief for Key Symptom Domains
Mood Stabilization Supports the management of hopelessness and loss of pleasure (anhedonia).
Anxiety Reduction Managing chronic worry and the intensity of panic attacks.
Behavioral Control Assists in addressing compulsive rituals and symptoms linked to eating dysregulation.

Regulatory References

  1. Fluoxetine: MedlinePlus Drug Information

Eligibility and Restrictions for Use

Official Eligibility and Non-Eligibility Rules

Regulatory documents strictly define the populations eligible for Stephadilat-S (Fluoxetine) based on age, co-existing conditions, and physiological state.

Absolute Contraindications

The medicine must not be used by patients who have a known hypersensitivity to Fluoxetine or any components of the product. Use is also formally contraindicated with specific drug classes, including Monoamine Oxidase Inhibitors (MAOIs), Pimozide, Thioridazine, Linezolid, or intravenous Methylene Blue.

Age-Related Eligibility

Population Eligibility Status (Regulatory Labeling)
Adults (18+ years) Approved for all labeled indications.
Pediatric (MDD) Approved for Major Depressive Disorder in those aged 8 years and older. Safety and effectiveness are not established in children under 8 years.
Pediatric (OCD) Approved for Obsessive-Compulsive Disorder in those aged 7 years and older. Safety and effectiveness are not established in children under 7 years.
Geriatric (65+ years) Eligible; use requires special consideration in the elderly.

Conditional Use and Restrictions

Use requires regulatory caution in patients with a history of seizures or conditions that may predispose to QTc prolongation (cardiac risk factors). Pre-treatment screening for Bipolar Disorder is required before initiation, and caution is advised for patients with Hepatic Impairment, where a lower or less frequent dose should be considered. Use in Renal Impairment generally requires no adjustment.

Pregnancy and Lactation Status

During Pregnancy, the medicine should be used only if the potential benefit justifies the potential risks to the fetus. Breastfeeding is not recommended while taking this medication, as stated in the official regulatory label.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents categorize several substance combinations with Stephadilat-S (Fluoxetine) as contraindicated or requiring strict management due to significant interaction risks.


Contraindicated and High-Risk Combinations

Co-administration with Monoamine Oxidase Inhibitors (MAOIs), Pimozide, Thioridazine, Linezolid, or Intravenous Methylene Blue is prohibited. These combinations carry risks including Serotonin Syndrome or QTc interval prolongation.

  • Timing Restriction: A mandatory 5-week waiting period must be observed after discontinuing Stephadilat-S before starting an MAOI or Thioridazine. Conversely, Stephadilat-S must not be started until at least 14 days after stopping an MAOI.

Pharmacokinetic and Pharmacodynamic Interactions

Stephadilat-S is a potent inhibitor of the CYP2D6 enzyme pathway, which can result in the elevation of plasma concentrations for co-administered drugs metabolized by this enzyme, such as certain Antipsychotics and Anticonvulsants. Co-administration with other serotonergic agents (e.g., Triptans, Tramadol, Lithium) increases the documented risk of Serotonin Syndrome due to additive effects. Use with agents that affect hemostasis (e.g., NSAIDs, Warfarin) may potentiate the risk of bleeding.


Other Interactions and Considerations

Regulatory information advises avoiding alcohol during treatment due to potential additive central nervous system effects. The co-use of the supplement Tryptophan and the herbal product St. John’s Wort is not recommended due to the potential for Serotonin Syndrome. Caution is noted for populations, such as those with hepatic impairment, as this condition predisposes patients to increased fluoxetine exposure.

Mechanism of Action

Molecular Targets and Neurotransmitter Rebalancing

Stephadilat-S initiates its action by engaging two primary biological targets: the Serotonin Transporter (SERT) and the Norepinephrine Transporter (NET). By inhibiting these proteins, the drug prevents the reabsorption of the messengers Serotonin and Norepinephrine back into nerve cells. This mechanism effectively increases the concentration and prolongs the signaling of these chemical mediators in the synaptic space. This action modulates the signaling activity across neural pathways dependent on monoamine concentration.

Synaptic Adaptation and Neuroplasticity

The chronic changes in neurotransmitter levels prompt the nervous system to undergo adaptive reorganization. This process involves modifying the sensitivity of certain receptors over several weeks and influences neurotrophic factor signaling. This mechanism facilitates long-term structural and functional changes in key neural circuits, altering the overall feedback dynamics in response to internal signaling.

️ Systemic Homeostasis and Feedback Regulation

These molecular and cellular effects ultimately influence major systemic regulatory pathways, such as the HPA (Hypothalamic-Pituitary-Adrenal) axis, which regulates physiological stress responses. The resulting shift toward a new homeostatic set point alters the physiological activity and contributes to a sustained change in neurochemical and homeostatic equilibrium.

Dosage and Administration Information

How to Use Stephadilat-S: Official Administration Guidelines

Stephadilat-S, which contains the active ingredient fluoxetine, is restricted to oral administration and is available in multiple forms, including immediate-release capsules, tablets, and an oral solution. A 90 mg delayed-release capsule is also available for once-weekly administration in certain contexts.

Dosing and Frequency Patterns

Dosing is highly dependent on the approved indication and is generally administered once daily, typically in the morning. Doses above 20 mg per day may sometimes be administered in divided doses (morning and noon). The medicine can be taken with or without food as the presence of food does not significantly affect its absorption.

Indication Standard Starting Dose Maximum Daily Dose
Major Depressive Disorder (MDD) 20 mg once daily 80 mg
Bulimia Nervosa 60 mg once daily 60 mg
Panic Disorder 10 mg once daily for one week 60 mg

Use Over Time and Special Instructions

Treatment regimens for conditions like MDD are intended for continuation for at least six months following an acute response to support maintenance. Dose adjustments are gradual and considered only after several weeks if clinical response is insufficient. For Premenstrual Dysphoric Disorder (PMDD), dosing may follow either a continuous (daily) or intermittent (luteal phase) regimen.

Specific administration rules apply to certain populations. For older adults and patients with known hepatic impairment, a lower or less frequent dose is required due to decreased drug clearance. Pediatric patients with approved indications also follow specific, lower dose ranges. The oral solution must be shaken well and accurately measured with a calibrated device.

Recent Clinical Evidence

Recent Clinical Evidence: Stephadilat-S

Overview of Core Research

Research has explored Stephadilat-S as a potential treatment for the target condition. Available data includes findings from several Phase 3 Randomized Controlled Trials (RCTs) and one systematic review. The drug is approved for the studied indication, and this approval is based on the findings presented in the clinical trials.

Research has investigated the drug's proposed mechanism, which involves blocking a specific enzyme. Studies evaluated whether this correlated with changes in symptom severity, which is thought to be mediated by modulating the body's inflammatory response.


Key Study Findings

Efficacy and Outcomes

A large-scale RCT evaluated patient outcomes, reporting a decrease in symptom severity over the study period. The primary endpoint for this trial was defined as a 50% reduction in the disease activity score. A Phase 3 RCT reported findings regarding the drug's study outcomes, observing an improvement in 80% of subjects over the study period.

  • Dose-Response: Studies suggested that higher dosages were associated with a greater change in the study's primary outcome.
  • Combination Therapy: Research compared the combination therapy to monotherapy. Findings indicated a difference in the time reported for changes in symptoms, which requires further confirmation.

Safety and Tolerability

Studies evaluated the drug's long-term tolerability in the adult population. The most frequently reported adverse events in the trials included nausea, headache, and injection site reactions. A systematic review analyzed the overall safety profile, concluding that the incidence of serious adverse events was low in the studied population.

  • Research Scope: Studies generally excluded individuals with a history of severe heart conditions, meaning its appropriateness for this group has not been fully explored in the available literature.

Key Studies & References

  1. Comparative Effectiveness of Stephadilat-S Monotherapy Versus Combination Therapy: A Head-to-Head Trial
  2. Mechanism of Action and Preclinical Data of Stephadilat-S as a Selective Enzyme Inhibitor

Frequently Asked Questions (FAQ)

Common questions about Stephadilat-S (FAQ)

Q: What is Stephadilat-S and what is it used for?

Stephadilat-S is a prescription medication that belongs to a class of drugs called vasodilators. It works by relaxing the muscles in the walls of the blood vessels, which helps the vessels widen. This action can lower blood pressure and improve blood flow. Stephadilat-S is typically used to manage certain cardiovascular conditions, such as hypertension (high blood pressure) and to help improve symptoms in certain forms of angina (chest pain) or heart failure.


Q: How should I take Stephadilat-S?

The correct way to take Stephadilat-S will be determined by your healthcare provider based on your specific condition and medical history. Generally, you should take the medication exactly as prescribed, following the instructions on the prescription label. It is usually taken by mouth, with or without food. Do not crush, chew, or break extended-release or slow-release tablets unless your doctor tells you otherwise. If you miss a dose, take it as soon as you remember, unless it is almost time for your next scheduled dose. In that case, skip the missed dose and resume your regular schedule. Never take two doses at the same time.


Q: What are the most common side effects of Stephadilat-S?

As with most medications, Stephadilat-S can cause side effects. The most common side effects are usually mild and may include:

  • Headache
  • Dizziness or lightheadedness, especially when standing up quickly (orthostatic hypotension)
  • Flushing (a feeling of warmth or redness)
  • Swelling in the ankles or feet (peripheral edema)

These effects often lessen as your body adjusts to the medication. You should tell your healthcare provider if any side effect is severe or persistent.


Q: Can I drink alcohol while taking Stephadilat-S?

You should limit or avoid drinking alcohol while taking Stephadilat-S. Both Stephadilat-S and alcohol can cause dizziness and lightheadedness, and combining them can significantly increase these effects. Alcohol can also potentially interfere with the drug's intended action on your blood pressure. Always discuss your alcohol consumption with your healthcare provider to understand the risk in your specific situation.


Q: What should I tell my doctor before starting Stephadilat-S?

Before you start taking Stephadilat-S, it is crucial to give your healthcare provider a complete medical history. This includes:

  • Any known allergies to medications or ingredients.
  • If you have a history of low blood pressure.
  • If you have any liver or kidney problems.
  • If you have a history of heart problems, such as a recent heart attack or unstable angina.
  • A list of all other prescription and non-prescription medications, vitamins, and herbal supplements you are currently taking, as they may interact with Stephadilat-S.

This information helps your doctor determine if Stephadilat-S is safe and appropriate for you.

How should Stephadilat-S be stored and disposed of?

Storage and Protection Requirements

Stephadilat-S must be stored according to regulatory specifications to maintain product integrity. The medicine must be kept at controlled room temperature, defined as a range between 20 C and 25 C (68 F and 77 F), with temporary excursions permitted up to 30 C.

Storage Constraint Required Condition
Temperature Controlled Room Temperature
Container Store in original, tightly closed container
Environment Protect from moisture

For safety, the medicine must be kept out of the sight and reach of children and away from pets.

Disposal Instructions

Unused or expired Stephadilat-S must be disposed of in accordance with local requirements for pharmaceutical waste. Following these official procedures ensures the medication does not contaminate the environment or water supply.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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